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Prev Professional Automotive Repair Technical Discussions for May 31, 2012
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Open Help Requests for GM
Help Request Answers
2007 Cadillac SRX 3.6L Alternator VIN: 1GYEE63737
Third alternator no charging
1999 Chevrolet Express 3500 LS 5.7L Excessive Emissions, Hesitation, Surge, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GAHG39R8X
van runs fine sometimes then step on gas hesitates stumble back fires thru intake hold to floor acts like cat conv plugged fuel trims way off then while holding gas pedal down it take off and runsfine take off and drive same thing fine step on gas falls on fac... Trouble codes: P0132, P0172
2002 Chevrolet Impala LS 3.8L Starting VIN: 2G1WH55K02
Hi all.Got 02 Impala with an intermittent draw.Am testing car with a shunt and allowing modules to power down for at least 1/2 hr.When draw is present it shows 1.64a draw.Remove radio and draw goes to .68a.I do not believe radio is problem as I replaced with k...
2004 Chevrolet Express 3500 6.0L Poor Idle Quality VIN: 1GCHG39U54
Vehicle idles at 2900 rpm. Oxygen sensor readings appear normal but smoke tested vacuum system and found no leaks. TPS voltage normal and smooth. Removed throttle body and IAC pintle was pulled all the way back(open). Replaced throttle body with a used one(inc... Trouble codes: 0507 (Idle out of range)
2004 Chevrolet Colorado LS 3.5L MIL Lamp on VIN: 1GCCS19684
am i missing something ? any help would be great ! Trouble codes: P0141
2006 Chevrolet Optra LS 2.0L Safety VIN: KL1JD69Z66
Does anyone know how to read airbag codes in a 2006 Chevy Optra? Our OTC Genysis Scanner doesn't seem to support this vehicle.
2008 Chevrolet Silverado 3500 HD WT 6.6L no crank VIN: 1GJBK34638
truck was parked friday afternoon, with no problems went to start tuesday and no crank,just a small municipal garage limited resources, i removed starter relay and jumped terminals and engine would crank but not start with key on
2000 Oldsmobile Bravada 4.3L Hesitation, Cuts out VIN: 1GHDT13WXY
This vehicle came in with the driver saying he had to drive it two footed to get it here after buying it at auction. upon opening the hood its easy to see someone been chasing this problem. i drive truck and after warn up and upon deceleration it hesitates, st...
2002 Saturn L200 2.2L Hesitation, 1st gear sluggish VIN: 1G8JT54F52
Hello everyone, This vehicle was towed into the shop for a no-start issue and we found that the fuel pump needed to be replaced so the fuel pump was installed and the vehicle started up just fine; however, after initially road testing the vehicle the technici... Trouble codes: P0300 (Engine Misfire Detected), P0420 (Catalyst Efficiency Low Bank 1), P1599 (CC Power Management Mode or Engine Stall)

Fixes & Summaries for GM
Fix/Summary Answers
1992 Buick LeSabre Custom 3.8L Commpressor VIN: 1G4HP53L1N
Hello everyone thanks for all the replies I thought I had checked everrything twice but I went over it one more time I I did find a broken wire up under the dash this car had been sitting for awhile I don't no if rat got it or just where someone else been mess...
1999 Cadillac Eldorado ETC 4.6L a/c not turning on VIN: 1G6ET1299X
Your answers about using the heater controls to read and clear ACM was correct. I just did not want to disconnect the battery. to many items to be programed afterward. Thanks Everyone!
2004 Cadillac SRX 3.6L Spark Plug Tube VIN: 1GYEE63754
we determind that the leak was coming in from the bottom of the tube, and that the head would have to be pulled for repairs at a machine shop. customer declined repairs. thanks for all the help
1978 Chevrolet G20 Chevy Van 6.6L Rear main seal VIN: CGR357U209
Thanks for all of the replies! I received a ton of good tips. We ended up loosing all of the main caps and unbolting the torque converter. We then were able to slide a wire tie between the seal and block. We did this on front and rear of the seal. That was eno...
1989 Chevrolet S10 2.5L aldl VIN: 1GCBS14E2K
Thanks to Mike,Alex,Gordon,Nick and Todd and Stan for you replies. The vin listed was from a 1989 2.2 / the wiring harness and engine (4.3z) was changed from vin# [...] And this is when I got it with no injector pulse and no ALDL data but I had spa...
2005 Chevrolet Silverado 1500 5.3L Engine VIN: 2GCEK19BX5
Installed Updated LH Valve cover. Oil consumption Problem Fixed. Thank You For All The Help.
2005 Chevrolet Aveo LS 1.6L Engine Assy VIN: KL1TD526X5
The insurance company sent a valve cover from a 2007 that does not have the crankcase breather tube. Everything else bolted up and engine runs without CEL, so far so good.
2007 Chevrolet Equinox LS 3.4L Shift solenoid a VIN: 2CNDL13F27
Well after several weeks of driving I'm calling this one fixed. Wish I had a better summary but the only thing I really did was take off the prendle switch/TCM and clean the pins. Even though there was no real build up of corrosion on pins cleaning whith con...
2007 Chevrolet Colorado LT 3.7L security system VIN: 1GCDS19E17
hi,all techs. i got the car fixed at last! i got a hint from a friend that the whole ignition cilinder needed to be replaced and it worked! i ordered a new cilinder from gm . thanks all you guys who responded .and a special thanks goes to Allen from South Caro...
2008 Chevrolet Aveo LS 1.6L Cuts out, Lacks Accleleration VIN: KL1TD566X8
Thanks for all the help we got it running much better with a tuneup . Her problem still is their but she cant afford to repair all issues at once so we retuned vehicle after we got it running better. Noticed it set a code for the TPS right before we returne... Trouble codes: P0705.
1998 GMC Sonoma SL 4.3L Charging VIN: 1GTDT14X2W
Thanks for the quick replies. I did get this thing to charge consistantly. Those who thought that the alt was bad were right. I did not mention in my original post that the alt had also been replaced by the other shop. I fact when I called the suppilier it tur...
2002 GMC Sierra 2500 HD SL 6.6L Mechanical VIN: 1GTHK231X2
Found a stuck shift valve in the valve body.Because of the high milage the customer decided to install a new transmission.Thanks for your replies.
2003 GMC Envoy SLE 4.2L Noise
To start I think most where confused with my post I did edit it to say that the bearing was NEW the fix was the opposite side bearing which made no moise on lift but did have a bind when turning it by hand thanx you guys r the best!!!
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